ACA Subsidy Cliff Calculator (2026)

What changed on 1 January 2026

Two things happened at once, and they compound.

First, the enhanced subsidies that had been in place since 2021 expired on 31 December 2025. From 2021 to 2025 the credit tapered gently above 400% of the federal poverty level — nobody paid more than 8.5% of their income for the benchmark plan. That taper is gone. The 400% cliff is back: at 400.0% of the poverty line you get a credit, and at 400.1% you get nothing. Not a reduced amount. Nothing.

Second, and much less discussed, OBBBA removed the repayment caps for tax years beginning after 31 December 2025. Until now, if you took advance credit during the year and then earned more than you predicted, the amount you had to pay back was capped by statute for anyone under 400% FPL. That protection is gone. You now repay every dollar of excess advance credit at tax time. And if you cross the cliff, you repay all of it.

Put those together and the effect on freelancers is severe. You are asked in November to predict a full year of income you cannot predict, you receive the credit monthly on the strength of that guess, and if a good December pushes you over the line you owe the entire year's subsidy back in April with no cap.

The steepest marginal rate in the tax code

The cliff is not a metaphor. For a household of two in the lower 48, 400% of the poverty line for 2026 coverage is $84,600. Earn $84,600 and you may receive many thousands of dollars of credit. Earn $84,601 and you receive none of it.

For an older couple in a high-premium state that single dollar can be worth more than $30,000. There is no other point in the US tax system where one dollar of income costs anything close. It dwarfs every bracket change, every phase-out, every recapture. The chart above draws it for your own numbers, and the drop is vertical because that is what the statute says.

Note which figures the cliff uses. Eligibility for 2026 coverage is measured against the 2025 poverty guidelines, which is a year behind and catches people out. Those are $15,650 for one person in the lower 48, rising $5,500 per additional person, with higher figures for Alaska and Hawaii. Multiply by four for the cliff.

Why the self-employed have an exit and employees do not

This is the part no other calculator shows you, and it is the reason this page exists.

The income that matters is modified adjusted gross income — and a deductible retirement contribution reduces it. A SEP-IRA or Solo 401(k) contribution comes off before the line. So if your income lands just over the cliff, a contribution large enough to close the gap does not merely save you tax at your marginal rate. It restores the entire premium tax credit.

The arithmetic is startling. Suppose you are $2,000 over the line and the credit at stake is $9,000. A $2,100 contribution saves perhaps $460 in income tax — and recovers $9,000 of subsidy. That is roughly $4.50 back for every dollar contributed, into an account that is still yours. There is no legitimate investment that competes with that, and it is available only to people who control their own adjusted gross income: the self-employed. A salaried employee whose income lands over the cliff has a 401(k) deferral available and little else.

Notice what that means about how far over the line you are. The subsidy you recover is roughly fixed — it is the credit you would have received anyway — while the contribution needed grows dollar for dollar with the gap. So the return per dollar is spectacular when you are just over and merely good when you are well over. At $2,000 over it can be four or five to one; at $10,000 over it is closer to one to one, which is still a fine trade but no longer extraordinary. The calculator gives you the actual ratio rather than a slogan.

The contribution figure shown is deliberately a little conservative: it is sized against your income before the health insurance deduction, so that it clears the line whatever the deduction turns out to be. The extra is not wasted — it is in your retirement account — but it does tie up cash, so treat it as a safe upper bound rather than a precise minimum.

Two cautions. You must have the earned income and the plan capacity to make the contribution — check the limits on our retirement plan calculator. And a Roth contribution does not work here, because it does not reduce AGI; it has to be the deductible kind.

The deduction and the credit chase each other

If you are self-employed there is a genuine circularity in this calculation, and it is why the number on this page will differ from simpler tools.

The self-employed health insurance deduction lowers your AGI. Lower AGI means a larger premium tax credit. But the deduction is only available for premiums you actually paid — and the credit pays part of them, so a larger credit means a smaller deduction, which raises AGI again. Each one moves the other.

The IRS addresses this directly in Publication 974, which sets out an iterative method: guess, compute, recompute, repeat until the numbers settle. This calculator solves for that settling point directly and enforces the statutory limit that your deduction plus your credit can never exceed the premiums you paid. Our health insurance deduction calculator covers the deduction on its own terms, including why it never reduces your self-employment tax.

And there is a band of income, just above the cliff, where the two rules have no consistent answer at all. Deducting your premiums drops you under 400% of the poverty line, which entitles you to a credit — but the credit shrinks the deduction, which lifts you back over the line, which removes the credit. Round and round. This is not a flaw in the arithmetic; it is what happens when a smooth deduction meets a discontinuous cliff. If your figures land there the calculator says so outright rather than quietly picking one of the two answers, shows the credit as zero because that is the safe assumption now that repayment is uncapped, and points you at the contribution that makes the problem disappear.

Estimating income when you cannot

The practical advice for irregular income runs against instinct. Because the repayment caps are gone, overestimating your income is now the safer error. Estimate high and you receive less advance credit during the year, then claim the balance as a refund when you file — you are lending the government money for a few months. Estimate low and you receive credit you may have to repay in full, in a single lump, in April.

Two habits follow from that. Update your marketplace application when your income picture changes rather than at renewal — you are allowed to, and it adjusts the advance payments going forward. And keep the cliff figure somewhere you will see it in December, when you still have time to make a deductible contribution, defer an invoice, or bring forward an expense. In January it is too late; the year is closed.

What this calculator does not do

It does not price plans. The benchmark figure — the second-lowest-cost silver plan for your household — depends on your age, your zip code and your family composition, and you have to get it from the marketplace's own plan preview tool. Everything downstream is only as good as that number, so it is worth looking up rather than guessing.

It also assumes you are eligible for marketplace subsidies at all. You are not if you have access to affordable employer coverage (including through a spouse), if you qualify for Medicaid, or if your income falls below 100% of the poverty line in a state that did not expand Medicaid. And it models federal credits only; a handful of states run their own additional subsidy programmes on top.

Frequently asked questions